Home / 2,128,469.81-3,189,591.19

Finding the Third Proportional to 2,128,469.81 and 3,189,591.19

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Solution

The third proportional to 2,128,469.81 and 3,189,591.19 is: 4,779,721.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,469.81 : 3,189,591.19 = 3,189,591.19 : x
  2. Step 2: Convert to fraction form
    2,128,469.81/3,189,591.19 = 3,189,591.19/x
  3. Step 3: Cross multiply
    2,128,469.81x = 3,189,591.19 × 3,189,591.19
  4. Step 4: Simplify right side
    2,128,469.81x = 10,173,491,943,377.66
  5. Step 5: Solve for x
    x = 10,173,491,943,377.66/2,128,469.81
  6. Step 6: Final answer
    x = 4,779,721.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.